【題目】Doing exercise is good ________ us.

A. at B. on C. in D. for

【答案】D

【解析】

句意:做運(yùn)動對于我們來說是有好處的。at在具體時(shí)間或地點(diǎn);on上面;關(guān)于;in里面;for對于,因?yàn)椤_@句話中使用了固定短語be good for…有好處。故應(yīng)選D。

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